American International Group Inc. expects to report third-quarter catastrophe losses of $1.5 billion to $1.7 billion from natural disasters including Hurricane Florence and typhoons Jebi and Trami. The shares fell in extended trading.

Additionally, initial estimates for losses tied to Hurricane Michael are about $300 million to $500 million, which are set to be included in fourth-quarter results, the New York-based company said Thursday in a statement. Those forecasts are calculated before taxes and net of reinsurance. AIG’s third-quarter earnings call is scheduled for Nov. 1.

Florence and typhoons in Asia are estimated to have caused billions of insured losses during the third quarter. Travelers Cos., which reported third-quarter results Thursday, said that catastrophe costs were $264 million in the quarter and that it expects to continue its share repurchase program despite the impact of Michael, which slammed the U.S. in October.

AIG shares traded at $46.50 at 4:37 p.m. Thursday in extended trading in New York, down 4.3 percent after closing at $48.61.